The CAB model is a pneumatic clutch and a pneumatic brake combination assembled in a totally enclosed housing. When air pressure between 20 PSI and 80 PSI is applied to the clutch port, a double acting piston will move to engage the clutch and release the brake. When air is applied to the brake port the piston disengages the clutch and engages the brake. The model CAB is used in applications where controlled clutch and brake engagement is essential, or where high cycle rates are required. Seven standard CAB assemblied are available.